Cog looks like a normal 12-year-old boy. But his name is short for “cognitive development”, and he was built to learn. After an accident leaves him damaged, Cog wakes up in an unknown lab - and Gina, the scientist who created and cared for him, is nowhere to be found. Surrounded by scientists who want to study him and remove his brain, Cog recruits four robot accomplices for a mission to find her. Cog, ADA, Proto, Trashbot, and Car’s journey will likely involve much cognitive development in the form of mistakes, but Cog is willing to risk everything to find his way back to Gina.

Bell has spent his whole life—all eleven years of it—on Mars. But he's still just a regular kid—he loves cats and any kind of cake, and is curious about the secrets the adults in the US colony are keeping. Like, why don't they have contact with anyone on the other Mars colonies? Why are they so isolated? When a virus breaks out and the grown-ups all fall ill, Bell and the other children are the only ones who can help. It's up to Bell—a regular kid in a very different world—to uncover the truth and save his family...and possibly unite an entire planet.

Everyone who wishes upon a star, or a candle, or a penny thrown into a fountain knows that you're not allowed to tell anyone what you've wished for. But even so, there is someone out there who hears it. In a magical land called the Haven lives a young fairy named Ophelia Delphinium Fidgets. Ophelia is no ordinary fairy - she is a Granter: one of the select fairies whose job it is to venture out into the world and grant the wishes of unsuspecting humans every day.

"Are you a gifted child looking for special opportunities?" Dozens of children respond to this peculiar ad in the newspaper and are then put through a series of mind-bending tests, which readers take along with them. Only four children—two boys and two girls—succeed. Their challenge: to go on a secret mission that only the most intelligent and inventive children could complete. To accomplish it they will have to go undercover at the Learning Institute for the Very Enlightened, where the only rule is that there are no rules.

Fiercetooth, a NightWing obsessed with what could have - and should have - been. Deathbringer, desperate to prove himself as the next great NightWing assassin. Six-Claws, a loyal SandWing, who will soon find that loyalty comes with a price. Foeslayer the NightWing, a dragon in love turned kidnapper, and Prince Arctic of the IceWings, a runaway turned captive. In these four short stories, dig deeper into the world of Pyrrhia to discover what really happened.

Island of the Blue Dolphins is the remarkable story of a strange and beautiful Indian girl who lives a serene and courageous life as the solitary survivor on an island off the California coast. Left behind when the rest of her tribe fled, she waits, year after year, for a ship to come for her. She fights for her very survival, building a shelter, hunting for food, and making weapons to stave off her enemies, the wild dogs who took her brother.

Like his fellow lunarnauts - otherwise known as Moonies - living on Moon Base Alpha, twelve-year-old Dashiell Gibson is famous the world over for being one of the first humans to live on the moon. And he's bored out of his mind. Kids aren't allowed on the lunar surface, meaning they're trapped inside the tiny moon base with next to nothing to occupy their time - and the only other kid Dash's age spends all his time hooked into virtual reality games.

Every year the people of the Protectorate leave a baby as an offering to the witch who lives in the forest. They hope this sacrifice will keep her from terrorizing their town. But the witch in the forest, Xan, is kind and gentle. She shares her home with a wise Swamp Monster named Glerk and a Perfectly Tiny Dragon, Fyrian. Xan rescues the abandoned children and delivers them to welcoming families on the other side of the forest, nourishing the babies with starlight on the journey.

On his 13th birthday, foster child Alcatraz Smedry gets a bag of sand in the mail - his only inheritance from his father and mother. He soon learns that this is no ordinary bag of sand. It is quickly stolen by the cult of evil Librarians who are taking over the world by spreading misinformation and suppressing truth. Alcatraz must stop them, using the only weapon he has: an incredible talent for breaking things.

For Milo, everything’s a bore. When a tollbooth mysteriously appears in his room, he drives through only because he’s got nothing better to do. But on the other side, things seem different. Milo visits the Island of Conclusions (you get there by jumping), learns about time from a ticking watchdog named Tock, and even embarks on a quest to rescue Rhyme and Reason. Somewhere along the way, Milo realizes something astonishing. Life is far from dull. In fact, it’s exciting beyond his wildest dreams.

Jess Aarons has been practicing all summer so he can be the fastest runner in the fifth grade. And he almost is, until the new girl in school, Leslie Burke, outpaces him. The two become fast friends and spend most days in the woods behind Leslie's house, where they invent an enchanted land called Terabithia. One morning, Leslie goes to Terabithia without Jess and a tragedy occurs.

When suburban Claudia Kincaid decides to run away, she knows she doesn't just want to run from somewhere she wants to run to somewhere--to a place that is comfortable, beautiful, and preferably elegant. She chooses the Metropolitan Museum of Art in New York City. Knowing that her younger brother, Jamie, has money and thus can help her with the serious cash flow problem she invites him along.

Pax and Peter have been inseparable ever since Peter rescued him as a kit. But one day the unimaginable happens: Peter's dad enlists in the military and makes him return the fox to the wild. At his grandfather's house 300 miles away from home, Peter knows he isn't where he should be - with Pax. He strikes out on his own despite the encroaching war, spurred by love, loyalty, and grief, to be reunited with his fox. Meanwhile Pax, steadfastly waiting for his boy, embarks on adventures and discoveries of his own....

When Jaxon is sent to spend the day with a mean old lady his mother calls Ma, he finds out she's not his grandmother - but she is a witch! She needs his help delivering baby dragons to a magical world where they'll be safe. There are two rules when it comes to the dragons: Don't let them out of the bag, and don't feed them anything sweet. Before he knows it, Jax and his friends Vikram and Kavita have broken both rules! Will Jax get the baby dragons delivered safe and sound? Or will they be lost in Brooklyn forever?

Sara Martinez is a hacker. She recently broke into the New York City foster care system to expose her foster parents as cheats and lawbreakers. However, instead of being hailed as a hero, Sara finds herself facing years in a juvenile detention facility and banned from using computers for the same stretch of time. Enter Mother, a British spy who not only gets Sara released from jail but also offers her a chance to make a home for herself within a secret MI5 agency. Operating out of a base in Scotland, the City Spies are five kids from various parts of the world.

Earth is about to go dark. Without a new power source, life as we know it will be toast. A global competition is under way to determine which four kids will join the secret mission that might just save us all. Project Alpha is a contest of physical challenges, mental puzzles, and strategic alliances. The battle is fierce. Who will lead the team? Who will pilot the most complicated space ship ever built? Who will be a friend? An enemy? And how will they survive over a year stuck on a space ship together?

Fletcher Connolly hasn't got a lot to lose. Since he and half the galaxy signed on to the rat race of the technological relics trade, Fletch has come to terms with the idea that he will join the ranks of unlucky explorers that perish light years from home without a dime to his name. But bankruptcy is a great motivator. With friends and family counting on him to strike it rich, Fletch embarks on an unwilling quest for alien treasure.

Humankind has escaped a dying Earth and set out to find a new home among the stars aboard an immense generation ship affectionately named the Ark. Bryan Benson is the Ark's greatest living sports hero, enjoying retirement working as a detective in Avalon, his home module. The hours are good, the work is easy, and the perks can't be beat. But when a crew member goes missing, Bryan is thrust into the center of an ever-expanding web of deception, secrets, and violence.

The U.S.S. Merrimack was the finest battleship class spaceship in Earth's fleet, able to stand up against the best the Palatine Empire could throw at them, even able to attack and kill swarms of the seemingly unstoppable Hive. But nothing could have prepared the captain and crew of the Merrimack to face the Myriad - three colonized worlds in the midst of a globular cluster that the Hive had somehow overlooked.

At 23, Jazen Parker has completed his Legion hitch a hero. But in four months, hell have a price on his head. Worse, hes lost his past, and he cant find his future. Worst of all, hes chosen to search for them on the deadliest planet known to mankind. When Jazen reluctantly hires on to a Trueborn Earthman tycoon's safari to bag a deadly trophy, the reluctant mercenary finds himself shipped out to Downgraded Earthlinke 476, the outpost at the end of the universe known to everyone except its tourism bureau as "Dead End".

Welcome to Ringworld, an intermediate step between Dyson Spheres and planets. The gravitational force created by a rotation on its axis of 770 miles per second means no need for a roof. Walls 1,000 miles high at each rim will let in the sun and prevent much air from escaping. Larry Niven's novel, Ringworld, is the winner of the 1970 Hugo Award for Best Novel, the 1970 Nebula Award for Best Novel, and the 1972 Ditmars, an Australian award for Best International Science Fiction.

Darius Drake is desperate to save his daughter, Cassandra. So desperate he's willing to risk their lives in cryo-sleep to give her a future. But the dark, freezing vault where he wakes up is nothing like the luxurious Florida hospital he remembers. Everything about this place is alien to him, even the language. Little does he know how alien it really is. Darius and his daughter go exploring their new surroundings with a few others from the cryo pods, and they soon discover frozen, mutilated bodies everywhere.

In a distant future, Trevor "Lex" Alexander was shaping up to be the next great race pilot until a fixed race got him banned from the sport. Reduced to making freelance deliveries, he thinks his life can't get any worse. That's when a package manages to get him mixed up with mobsters, a megacorp, and a mad scientist. Now his life depends on learning what their plans are, and how he can stop them.

Death awaits the curious! Out along the rim of the galaxy hangs a loose configuration of some 60 stars known as the Faustian Chain. This whorl of sparkling suns is rich in planets and occupies an irregular volume of space some 20 light years in diameter. From an external viewpoint, the Chain presents a colorful display of plasma-streams, luminous nebulae and sparkling pinpoints of light.

Archaeologists Pippa Quinn and Charlie Jackson find advanced technology in undisturbed 16th-century graves. A portent, the discovery precedes thousands of giant sinkholes opening up across the globe as extreme weather threatens the population. Charlie suspects the two are related.

Passage at Arms tells the intimate, detailed and harrowing story of a climber crew and its captain during a critical juncture of the war. Cook combines speculative technology with a canny and realistic portrait of men at war and the stresses they face in combat. Passage at Arms is one of the classic novels of military science fiction.

They are the last survivors of their race, beings who live on and communicate through energy, who are capable of assuming the shape of any other species. When their youngest member is assigned to a world considered safe to explore, she is captured by the natives. To escape, she must violate the most important rule of her kind, and reveal the existence of her species to a fellow prisoner - a human being. Now her race is in danger of extinction, for even if the human does not betray her, the Enemy who has long searched for her people may finally discover their location.

The Tantalus 13 survey expedition went off the rails as soon as Mary Ketch and the crew of the Diamelen learned that the thing beneath their feet wasn’t a planet. An impossibly vast and ancient artificial structure lies below, hidden from the universe under a façade of cratered stone. SCARAB arrived on Tantalus 13 two years ago. An artificially intelligent, self-constructing factory, it was supposed to aid the crew in their mission, to meet their every need.

Mitch Matthews is writer struggling to make ends meet when his wife's brother offers them a first-class seat on a flight from Hong Kong to New York. When his wife needs to stay behind, it becomes an opportunity for some quality daddy-daughter time with his five-year-old Lilly. At check-in, they run into a strange Norwegian arguing with a huge Russian. A mysterious redhead is guarding a package in the business lounge. But everything is fine...right up until the event. Within hours of Allied Airlines 695 disappearing, a massive international search is launched.

Paleontologist Brandon Thackery and his rival, Miles "Klicks" Jordan, fulfill a dinosaur lover's dream with history's first time-travel jaunt to the late Mesozoic. Hoping to solve the extinction mystery, they find Earth's gravity is only half its 21st-century value and dinosaurs that behave very strangely. Could the slimy blue creatures from Mars have something to do with both?